// Thud - a dynamic object-oriented language
// Copyright (C) 2009,2010 David H. Hovemeyer <david.hovemeyer@gmail.com>

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// 
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU General Public License for more details.
// 
// You should have received a copy of the GNU General Public License
// along with this program.  If not, see <http://www.gnu.org/licenses/>.

/*
 * PushbackReader.h
 *
 *  Created on: Dec 25, 2009
 *      Author: dhovemey
 */

#ifndef PUSHBACKREADER_H_
#define PUSHBACKREADER_H_

#include <vector>
#include "util/Reader.h"

class PushbackReader : public Reader {
private:
	Reader *m_delegate;
	std::vector<wchar_t> m_stack;

	PushbackReader(const PushbackReader &);
	PushbackReader& operator=(const PushbackReader &);

public:
	PushbackReader(Reader *delegateToAdopt);
	virtual ~PushbackReader();

	virtual long readChar();

	void pushBack(wchar_t c);

};

#endif /* PUSHBACKREADER_H_ */
